Money for Asia/ Australia

I am spending just under 2 weeks in Thailand then moving on to Sydney where I want to travel round Austraila. My first week in Thailand is booked and paid for, so hopefully all I will need to buy is food. I have 3 nights in Sydney booked too. I hoping to have about £5000 when i leave the UK, is this a decent amout to go away with? I have a working visa so I will work when I can find a job. Also what would be the best form of money to take?

I will be taking around £5000, if your finding work out there like me when you get thereit should be aright,, you know your not eating in to it to much if your working,If your someone like me who worked and saved to get away. I read on some other post about budget www.travellerspoint.com/forum.cfm?thread=75854no.5My friend just got back from Thailand, She told me beer and food is so cheap!everything really, she had so much fun. Also lots of people like your self stopping off there on the way to OZ or coming back,Money to take to Thailand?,